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134517-87-6

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134517-87-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134517-87-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,5,1 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 134517-87:
(8*1)+(7*3)+(6*4)+(5*5)+(4*1)+(3*7)+(2*8)+(1*7)=126
126 % 10 = 6
So 134517-87-6 is a valid CAS Registry Number.

134517-87-6Relevant articles and documents

AN ENANTIOSELECTIVE CONSTRUCTION OF PYRROLIDONES BEARING FUNCTIONALIZED APPENDAGES VIA AN ASYMMETRIC INTRAMOLECULAR MICHAEL REACTION

Hirai, Yoshiro,Terada, Takashi,Katoh, Hideko,Sonohara, Sayuri,Momose, Takefumi

, p. 7 - 10 (2007/10/02)

The intramolecular Michael reaction of acyclic compounds 9 and 10 to form pyrrolidones is reported.Cyclization of 9 and 10 using (R)-(+)-1-phenylethylamine as a mediator gave the pyrrolidones (+)-11 and (+)-12 in 63percent and 65percent enantiomeric exces

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